Gyroscope-bearing



W. DIETER.

GYHOSCOPE BEARING. AIPLICAHON FILED 1AN.25, 19w.

1,332,205, Patented Mar. 2, 1920 [Hill/11M INVENTOR WITNESS NORRIS Pl ll"5 INC LIIIHL. WAMHNGIUN, l) C ED sTArns PATENT OFFICE.

WILLIAM DIETER, 0F BROOKLYN, NEW YORK, ASSIGNOR TOE. W. BLISS COMPANY,OF BROOKLYN, NEW-YORK, A CORPORATION OF WEST VIRGINIA.

GYROSCOIiE-BEABING.

Specification of Letters latent;

Patented Mar. 2, 1920.

To all whom it may concern:

Be it known that I, IVILLIAM DIETER, a citizen of the United States ofAmerica, residing in the borough of Brooklyn, County of Kings, city andState of New York, have invented certain new and useful Improvements inGyroscope-Bearings, of which the foliowing is a specification.

This invention relates to the construction of ball bearings forgyroscopes and analogous instruments,- being especially designed for thegyroscopes used for controlling the steering of automobile torpedoes.

The nature of the invention will be made apparent from the description,with reference to the accompanying drawings. wherein,

Figure l is a sectional elevation of a gyroscope and its bearings, thesection being in a verti 'al plane through the axes of the respectivebearings.

Figs. 2 and 3 are respectively an end elevation and a diametrical.section of the body or shell of the bearing.

Figs. 4, 5 and 6 are diametrical sections of the three forms of bearingsdesignated respectively as A, B and C.

Figs. 7 and 8 are elevations of the opposite ends of the bearing showninFig. 4.

Referring to Fig. a is the fly-wheel and Z) its hub or spindle, 0 itspinion, d the inner gimbal ring, a the outer gimbal ring, and j thestationary supporting member, all constructed as is usual withgyroscopes for torpedoes. The pivots of the flywheel spindle Z) are hungin ball bearings A and B respectively, while the pivots of the outergimbal ring 0 are hung in ball bearings of ivhich the lower one is shownat C, and the upper may be a duplicate thereof. The bearings A and Bdiffer from each other only in that the former has a socket forreceiving the locking bolt g for holding the gyroscope gimbal stationaryduring the spinning-up operation.- while the latter receives athumbscrew 11. Each of the bear ings A. B and C comprises a hardeneddisk or button 2'- and a hardened ring or bushing j. which together formthe stationary raceway in which travel the balls of the bearing. theusual coned pivot 73 being provided to enter within the balls.

The purpose of the present invention is to provide for suitablyassembling and mounting the hardened parts i and j in their roperrelation to the other members of the caring. To this end, these partsare seated in suitable sockets or recesses in abody portion m whichitself is screwed into or otherwise seated in the socket portionof thehearing support.

The construction andits advantages may be best understood from adescription of the preferable mode of constructing and assembling thehearing.

The body blank is first formed as shown in Figs. 52 and 3, being turnedup preferably from machine steel, with a chambered portion 2 and acentral bore 9. The outer flange 1 forming the chamber p extends con--siderably beyond the thickness of the annular bushing j which is to beseated in this chamber. Screw holes 8 s and pin holes 6 t are drilled inthe body portion.

In the next operation the hardened bushing j, ground to exact size, isinserted within the chamber p,fwliereupon the projecting flange 7 isturned or swaged inwardly, so as to form a flange r overlying the outerface of the bushing so as to hold the bushing securely in its seat.Preferably, this flanged portion is then lapped off to reduce itsthickness and afford a smooth face.

Next, the disk or button 2' is introduced from the opposite side intothe bore 9 of the body portion. This disk or button is conveniently ot'a different form in each of the.

three forms of bearings A. B and C. For hearing A it is preferablyformed integrally with a pro ect1ng bushing g which forms the socket forreceiving the bolt (7. In the.

bearing B it is a simple thin disk of hardened steel. backed by aseparate hushing w. the parts i qr having preterably'ihe' same externalcontour as the one part 2' g of bearing A. For hearing C, the button [ismade thicker and does not projectv beyond the body. In each of the threeforms a shoulder 11 is provided. button 1' (and in Fig. 5 the bushing v)the body is turned down so as to form a projecting flange or neck at itsrear. surrounding the bore 1 and after inserting the hardened button(and in Fig. 3 its bushing 11 this flange is spun or swaged in totightly embrace the shoulder u. shown at 7- in Figs. 4. 5 and 6. Theouter screw threads w may Before inserting thebe tapped at anyconvenient stage in the so also may the threads 10- be formed in thebushing u.

1 other respects than those herein described; the bearings shown do notdiffer from those already in use- The described construction of bearingis advantageous in that it provides for the required assembling of thehardened faces constituting the ball race, in proper relation and Withmathematical exactness, by operations which are free from any technicaldifficulties. The parts, once assembled, are permanently united, so thatthe bearings shown in Figs. 4:, 5 or 6 become a self-contained andsubstantially integral part.

What I claim is 1. In aball bearing, a bearing body having a smallerinner recess and a larger outer recess, a bearing disk in the smallerrecess and an annular race member in the larger recess overhanging saiddisk, and the body having an integral flange which is inturned toconfine such race member. a

'2. In a ball bearing, a bearing body having recesses, an annular racemember and a disk housed in said recesses, the bearing body having aninturned fiange for confining such race member, and an opposite inturnedflange for confining said disk.

In Witness whereof I have hereunto signed my name.

WILLIAM DIETER.

